Riversmerge Handheld 125khz Copier RFID Smart ID Card Duplicator Used for T5577 or EM4305+5pcs T5577 NO.3 Keychains +5 T5577 Cards
The card and key chain in the combination are the default empty command products. If it is necessary to test reading and writing Then please use the replicator to read the complimentary label, and then write it into the readable and writable card and keychain，Requirements 2 knots 1.5V AAA batteries<br>
Small size,light weight(56g),convenient for flow of work, on-site copy <br>
The machine can copy on the market parking on cards, access cards, switches cards,including small button-type, shaped cards.<br>
Can be reused, proximity cards can use an unlimited number of times，Please note that the product chip defaults to a blank instruction. If writing is required, read the 125 khz device instruction first, and then write it to the corresponding keychain or card.<br>
Replicator features is super,forced those cards which can only copy one time to be used many times in the host.<br>

Reflection Sensor Obstacle Avoidance Sensor Light IR Infrared Sensor 5pcs Adjustable for IR Robot
Sensor module output port OUT can be directly connected to micro-controller IO port, also can drive a 5V relay directly.
It can be widely used for robot obstacle avoidance, obstacle avoidance car, assembly line, black and white line tracking and many other occasions.
When module detects obstacles ahead, the green indicator light on the circuit board is on and at the same time the OUT port outputs low ; detection distance can be adjusted with potentiometer, clockwise to increase detection distance;c
Active infrared reflection detecting sensor, so the target reflectivity and shape is the key of the detection range.Black color has the minimum detection range, white has the maximum; small objects have short detection range, large objects have long dete
The detection range of the sensor can be adjusted with potentiometer, little interference, easy assembly and use.